Research by susan clancy (2005) found that many people claim to have had experiences or interactions with extraterrestrial beings. a participant in her research assured them that their experience was likely real, and used hypnosis to draw out their repressed memories of the event. as it turns out, the participant's entire experience may have actually been attributed to a bout of sleep paralysis, but this was not considered by the therapist. this case is an example of which concept of critical thinking? a. correlation versus causationb. ruling out rival hypothesesc. replicabilityd. falsifiability